emulsion vs outflow

emulsion

noun
  • A stable suspension of small droplets of one liquid in another with which it is immiscible. 

  • A colloid in which both phases are liquid. 

  • The coating of photosensitive silver halide grains in a thin gelatine layer on a photographic film. 

verb
  • To paint with emulsion paint. 

outflow

noun
  • A fluid that flows out. 

  • Any outward movement. 

  • Something that flows out of a sewage treatment plant. 

  • The process of flowing out. 

  • A stream of gaseous material emanating from an active galactic nucleus. 

  • The part of a system that allows material to flow out. 

verb
  • To flow outward. 

How often have the words emulsion and outflow occurred in a corpus of books? (source: Google Ngram Viewer )